SIA OpenIR  > 工业控制网络与系统研究室
New considerations for SIL verification of functional safety fieldbus communication
Ding L(丁龙); Wang H(王宏); Xu AD(徐皑冬); Li SX(李世兴)
Department工业控制网络与系统研究室
Source PublicationJournal of Loss Prevention in the Process Industries
ISSN0950-4230
2016
Volume43Pages:488-502
Indexed BySCI ; EI
EI Accession number20163002638678
WOS IDWOS:000384775400052
Contribution Rank1
Funding Organization863 Project (Project number: 2013AA040304) of China.
KeywordSafety Integrity Level Functional Safety Fieldbus Communication Residual Error Probability Residual Error Rate Safety Communication Layer Safety Instrumented System
AbstractSafety integrity level (SIL) verification of functional safety fieldbus communication is an essential part of SIL verification of safety instrumented system (SIS), and it requires quantifying residual error probability (RP) and residual error rate of function safety communication. The present quantification method of residual error rate uses RP of cyclic redundancy check (CRC) to approximately replace the total RP of functional safety communication. Since CRC only detects data integrity-related errors and CRC has intrinsically undetected error, some other residual errors are not being considered. This research found some residual errors of the present quantification method. Then, this research presents an extended new approach, which takes the found residual errors into account to determine more comprehensive and reasonable RP and residual error rate. From perspective of the composition of safety message, this research studies RPs of those controlling segments (sequence number, time expectation, etc.) to cover the found residual errors beyond CRC detection coverage, and the influences of insertion/masquerade errors and time window on RP are investigated. The results turn out these residual errors, especially insertion/masquerade errors, may have a great influence on quantification of residual error rate and SIL verification of functional safety communication, and they should be treated seriously.
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/18833
Collection工业控制网络与系统研究室
Corresponding AuthorDing L(丁龙)
Affiliation1.Key Laboratory of Networked Control Systems, Chinese Academy of Sciences, Shenyang Institute of Automation (SIA), University of Chinese Academy of Sciences (UCAS), 114 Nanta Street, Shenyang 110016, China
2.North Automation Control Technology Institute, 351 Tiyu Road, Taiyuan, 030006, China
Recommended Citation
GB/T 7714
Ding L,Wang H,Xu AD,et al. New considerations for SIL verification of functional safety fieldbus communication[J]. Journal of Loss Prevention in the Process Industries,2016,43:488-502.
APA Ding L,Wang H,Xu AD,&Li SX.(2016).New considerations for SIL verification of functional safety fieldbus communication.Journal of Loss Prevention in the Process Industries,43,488-502.
MLA Ding L,et al."New considerations for SIL verification of functional safety fieldbus communication".Journal of Loss Prevention in the Process Industries 43(2016):488-502.
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